diff --git a/site-cookbooks/kosmos-mediawiki/metadata.rb b/site-cookbooks/kosmos-mediawiki/metadata.rb
index c25037b..49573c1 100644
--- a/site-cookbooks/kosmos-mediawiki/metadata.rb
+++ b/site-cookbooks/kosmos-mediawiki/metadata.rb
@@ -10,3 +10,5 @@ depends "mediawiki"
 depends "firewall"
 depends "ark"
 depends "backup"
+depends "kosmos-nginx"
+depends "kosmos-base"
diff --git a/site-cookbooks/kosmos-mediawiki/recipes/default.rb b/site-cookbooks/kosmos-mediawiki/recipes/default.rb
index ffb8c4e..7f151d3 100644
--- a/site-cookbooks/kosmos-mediawiki/recipes/default.rb
+++ b/site-cookbooks/kosmos-mediawiki/recipes/default.rb
@@ -50,22 +50,30 @@ end
 include_recipe "mediawiki"
 include_recipe "kosmos-nginx"
 include_recipe "mediawiki::nginx"
-include_recipe "kosmos-base::letsencrypt"
 
-execute "letsencrypt cert for wiki.kosmos.org" do
-  command "./certbot-auto certonly --webroot --agree-tos --email ops@5apps.com --webroot-path #{node["mediawiki"]["docroot_dir"]} -d wiki.kosmos.org -n"
-  cwd "/usr/local/certbot"
-  not_if { File.exist? "/etc/letsencrypt/live/wiki.kosmos.org/fullchain.pem" }
-  notifies :reload, "service[nginx]", :delayed
+unless node.chef_environment == "development"
+  include_recipe "kosmos-base::letsencrypt"
+
+  execute "letsencrypt cert for wiki.kosmos.org" do
+    command "./certbot-auto certonly --webroot --agree-tos --email ops@5apps.com --webroot-path #{node["mediawiki"]["docroot_dir"]} -d wiki.kosmos.org -n"
+    cwd "/usr/local/certbot"
+    not_if { File.exist? "/etc/letsencrypt/live/wiki.kosmos.org/fullchain.pem" }
+    notifies :reload, "service[nginx]", :delayed
+  end
+end
+if File.exist? "/etc/letsencrypt/live/wiki.kosmos.org/fullchain.pem"
+  ssl_cert = "/etc/letsencrypt/live/wiki.kosmos.org/fullchain.pem"
+end
+if File.exist? "/etc/letsencrypt/live/wiki.kosmos.org/privkey.pem"
+  ssl_key = "/etc/letsencrypt/live/wiki.kosmos.org/privkey.pem"
 end
-
 template "#{node['nginx']['dir']}/sites-available/mediawiki" do
   source "nginx.conf.erb"
   variables(
     docroot:        node['mediawiki']['webdir'],
     server_name:    node['mediawiki']['server_name'],
-    ssl_cert:       "/etc/letsencrypt/live/wiki.kosmos.org/fullchain.pem",
-    ssl_key:        "/etc/letsencrypt/live/wiki.kosmos.org/privkey.pem"
+    ssl_cert:       ssl_cert,
+    ssl_key:        ssl_key
   )
   action :create
   notifies :reload, "service[nginx]", :delayed
@@ -90,7 +98,11 @@ end
 
 # MediawikiHubot extension
 # requires curl extension
-package "php5-curl"
+if platform?('ubuntu') && node[:platform_version].to_f < 16.04
+  package "php5-curl"
+else
+  package "php-curl"
+end
 
 ark "MediawikiHubot" do
   url "https://github.com/67P/mediawiki-hubot/archive/master.zip"
diff --git a/site-cookbooks/kosmos-mediawiki/templates/default/nginx.conf.erb b/site-cookbooks/kosmos-mediawiki/templates/default/nginx.conf.erb
index 0154d5f..d1eea31 100644
--- a/site-cookbooks/kosmos-mediawiki/templates/default/nginx.conf.erb
+++ b/site-cookbooks/kosmos-mediawiki/templates/default/nginx.conf.erb
@@ -1,6 +1,8 @@
 server {
         listen 80;
+        <% if File.exist?(@ssl_cert) && File.exist?(@ssl_key) -%>
         listen 443 ssl;
+        <% end -%>
         server_name <%= @server_name %>;
 
         access_log   /var/log/nginx/<%= @server_name %>.access.log;
@@ -30,6 +32,8 @@ server {
                 fastcgi_param HTTP_PROXY "";
         }
 
+        <% if File.exist?(@ssl_cert) && File.exist?(@ssl_key) -%>
         ssl_certificate <%= @ssl_cert %>;
         ssl_certificate_key <%= @ssl_key %>;
+        <% end -%>
 }